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Finding the Fourth Proportional to 885,803.36, 1,328,061.36 and 353,164.64

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Solution

The fourth proportional to 885,803.36, 1,328,061.36 and 353,164.64 is: 529,490.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,803.36 : 1,328,061.36 = 353,164.64 : x
  2. Step 2: Convert to fraction form
    885,803.36/1,328,061.36 = 353,164.64/x
  3. Step 3: Cross multiply
    885,803.36x = 1,328,061.36 × 353,164.64
  4. Step 4: Simplify right side
    885,803.36x = 469,024,312,102.31
  5. Step 5: Solve for x
    x = 469,024,312,102.31/885,803.36
  6. Step 6: Final answer
    x = 529,490.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.